Method of drilling books.



G. B. DRACH.

METHOD OF DRILLING BOOKS.

APPLICATION FILED JAN.16.I9IT.

Patented July 23, 1918.

3 SHEETS-SHEET I.

G. B. DRACH.

METHOD OF DRILLING BOOKS.

APPLICATION FILED JAN. ls. l9ll.

Patented July 23, 1918.

3 SHEETS-SHEET 2 339 MA e44 G. B. DRACH.

METHOD OF DRILLING BOOKS.

APPLICATION FILED JAN. 16. Ian.

Patented July 23, 1918.

3 SHEETS-SHEET 3 UNITED STATES PATENT OFFICE.

GEORGE IB. DRACH, 0F JERSEY CITY, NEW JERSEY, ASSIGNOR TO JERSEY CITY PRINTING COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

METHOD OF DRILLING BOOKS.

Specification of Letters Patent.

Patented July 23, 1918.

Application filed. January 16, 1917. Serial No. 142,627.

To all whom it may concern:

Be it known that I, GEORGE E. Dlmorr, a citizen of the United States, residing in the city of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and 'useful Improvements in Methods of Drilling Books; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings forming a part of this specification, will enable others skilled in the art to which my invention relates to make, use, and practise the same.

My invention relates generally to a method of drilling books by transversely piercing particularly paper-covered books such as telephone directories and the like, to which a hanger cord is to be attached by insertion through a corner thereof.

The object of my invention is to accomplish the boring or drilling of books economically and at high speed at relatively the same point in each and so that the hole produced shall be uniform not only throughout the book but also at the outer sides, and particularly at the side where the drill leaves the book in piercing it, so that splitting or tearing of the paper about the edge of the bore may be avoided, and the cover or case be not marred or defaced.

In drilling books it has heretofore been customary to employ as an anvil a female die in which the drill enters. The use of such die has presented the difficulty that it soon becomes burred. Ordinarily, after a few hundred books have been drilled, the die is so drill-marred that it causes a rough hole to be formed at the point of exit of the drill. My method essentially consists, in eflect, in the provision of 'a new female die member for each stroke of the drill. This is attainable by drilling a series of books at the same stroke of the piercing tool but checking such drill before it has completely penetrated the last member of the series, then withdrawing the drill, removing the pierced books, transposing the partlally drilled book constituting the last member of the series to become the first member of the succeeding series, and re eating the steps in the operation. B locating the partially pierced book as'the rst member of the succeeding series, the advantage is secured that its cover is not marred by the advancing and entering drill because it has been previously pierced. The transposed book may also serve as a pattern by which the accuracy of direction of the tool may be observed, but this function is of relatively minor importance, since the drill rcciprocates in a fixed path. The principal feature of advantage and utility characterizing my method resides in the avoidance of injury to the last member of the series, the result attained by the herein described method.

The novel features of construction and operation of a drilling machine Well adapted to my method will hereinafter be fully described, together with the best form thereof now known to me for attaining the particular features of novelty and utility characterizing my invention and which means constitute the subject-matter of my companion application Serial Number 166,336, filed May 1, 1917, as a division hereof.

In the accompanying drawings, Figure l is a side elevation of the machine; Fig. 2 is a plan view; Fig. 3 is a detailed view showing adjusting means adapted for feeding books of different thickness from those shown in Figs. 1 and 2; Fig. at is a fragmentary plan view of the means for feeding books of the thickness for which the adjustment shown in Fig. 3 is adapted; Fig. 5 is an end view of the machine; Fig. 6 i a plan view of a portion of the machine showing the parts in a different position from that shown in Fig. 2; Fig. 7 is a diagram representing the cycle of operations of the machine.

Referring to the drawings in detail, a driving shaft 1 is journaled in bearings 2 forming part of the main frame 3. Secured to the driving shaft is a worm 1 in mesh with a worm wheel 5 which is secured to a shaft 6. Secured to shaft 6 is a cam 7 having a cam groove 8 in which travels a roller 9 journaled on the bar 10. One end of the bar 10 is provided with a slot 11 so that it will ride on the shaft 6. The other end of the bar 10 is connected to an arm 12 which is secured to a shaft 13. Secured to shaft 13 is an arm 14 having rollers 15 journaled on its outer end. Rollers 15 travel in an annular groove 16 formed in a collar 17 which is secured to a rod 18. To one end of rod 18 is attached a drill 19. The rod 18 is provided with a slot 20 which is engaged by pins 21 projecting inwardly from i a sleeve. 22, which surrounds the rod18. The end of the sleeve 22 is provided with portions 23 of smaller diameter, which are freeto rotate in bearings 24.' Forming-part of sleeve22'is ahelical spur pinion 25 meshing with the helical spur gear teeth 26 formed on a wheel 27 which is secured to the driving shaft 1. Secured to shaft 6 is a wheel- 2 8 "-Which is provided with a cam groove 29, in which travels a roller 30 ournaled on a bar 31. One end of bar 31 is provided: with. a slot 32 sothat: it, will ride ornthe shaft. 6.v The other end of: the bar 31 is connected toa-n. arm 33which is secured to a shaft .34. Secured toshaft 34 isan; arm-35 which is connected by a link 36 to. aplunger 37-having a reciprocatingmovement in'guides 38. Pivoted on. the plunger 37'is a pawl 39adaptedfor engagement with. teeth. 40 of a ratchet wheel which is secured to a shaft 41.."To shaft 41 are secured chainwheels 42 (see: Fig. 2). over which travel chains .43- traveling over chain wheels 44 which aresecured to a shaft45. The chains. 43 travel at a-slightlyhigher level than theup-perside, of a table '46, so that when a groupofnbooks 47 are transferred from, a

trimming machine and placed upon the table 46,. such of the group as restuponthe chainswil-l be supported by the chains and-- not byth-e table. The books resting upon the chains pass between side guides 48 and a side guide 49 located at a height greater thanthe guides 48. The action of the part for cam groove 29. on roller 30 of bar 31 and parts connected therewith causes the forward .movement ofthe plunger 37 and theconsequent movement of the chains 43,

thereby ca-usingthe forward movement of the books 47. The forward movement of the books causes :one of said boods (l and the plunger 37 to press the preceding books 0 and 5 forward between guides 50 and 51 forming- .part of a channel which is shifted laterally from. the channel formed by guides 48. At the end of the forwardmovement of the plunger 37 the book I) is forced against ananvil -52.through-which passes the drill 19- attached to the rod 18. During the time that the part 9 of cam groove 29. causes the plunger 37 to clamp the books c and b againstwthe anvil 52, the part it of cam halfway through the book 0.

- 0 and .b-tobe released. Secured to the shaft-6 is a wheel 5.5 having a camgroove56 in which travels a roller57 journaledz-on a lever 58 which is p-i-izoted .at59. The fr e end; of

lever 58 isconnected by, a link 60 tonne end of a lever 61 which is pivoted at 62. The other end of lever 61 is connected to a plunger 63 which is connected to-a-n a-r1n64 pivoted at65. Lever 58- is-also" connected by a link 66 to one end of a lever 67 which is pivoted at 68. The other end of lever 67 is connected to a bar 69 which is connected to an arm70 pivoted at 71. Pivoted to the a bar 69-,isa pivotedvplunger 72. The plunger 7 2 is provided with-Ian arm 73 which is connected to the bar .69 by means. of a spring 74. During the-time that part 70- of cam groove Sea-uses the drill. 19. to remain inthe back. position, the part "Z of, cam groove. 56

acting onroller 57 of lever 58 and parts connected. thereto, causes movement of the plungers 63 and from the position shown in.-Fig. 2, to the position shown in Fig 6.

Themovement of plunger: 63 causesthe book 6 to. be moved/against an inclined guide 75 which. serves-to force one-end of the'book slightly forward, the book at the end of movement of the plunger 63 being in alinement with a channel formed by side guides 76and 77, themovement of the1plunger72 at the same time causing theouter end of the plunger tobe moved behind-the book d succeedingzthe; book 0. The part M of cam groove 56 will then cause return movement of the plungers. 63.- and 72, whereby the plunger 63 is moved clear of the book 0,;and plunger 72 forces book d-over against an incline 78 forming part of the side guides 49 and 5.1, whereby'onecnd of the book is moved slightly forward. Atthe end of movement of the plunger 72,, the book cl will be moved into. range with the channel formed by the side guides 50 and'51 and to rest in front of the plunger 37 Then as the part f of cam groove 29-causes movement of the plunger, the book cl and book 0 will. be forced forward against the anvil 52 in a manner similar to that previously de.'

scribed with reference to the forward movement of the books 0 and 6,. At the same time movement of thebooks (Z and 0, will cause -movement of thebook 5 forward betweenthe guides 76 and 77. The book 6 will thenoccupy the position: shownjby book a in Fig. 2. When forward movement of the plunger 37 by means of pawl 39 causes rotation of the shaft 41, a chain wheel 79 secured to theshaft- 41 causes .rnovement of a chain 80 traveling over achain wheel; 81 which is secured to ashaft 82; Secured to shaft 82-are chain wheels 83,over.which travel chains 84 traveling overchain wheels 85 which are secured to a shaft 86, During the lateral movement of the books '0 and theyv are supported by the-table 46 and not by the chains 43 on-chains 84, but hen the books are moved to the position shown by book a, they travel up'onto the-chains 84 which areplaced at ahigher level than the table 46. As shown in Figs. 1, 2 and 6, the machine is adjusted for feeding and boring thick books.

By reference to Fig. 2 it will be seen that the hole that has been drilled extends cntirely through one book and part way through a second book. When the plunger 63 moves the book- I) away from the anvil 52, and the plunger 37 causes the book 0 to be moved up against the anvil, it will be seen that the hole 54 extending part way through the book is then forced against the anvil so that as the drill is fed forward the book, being partly drilled before the drill enters the book, the cover of the book will not be marred by the drill. WVhen it is de sired to feed and bore thin books, the adjustments shown in Figs. 3 and 4 are made, so that the drill when moved forward, will drill through two thin books and part way through a third thin book. The space occupied by the three books shown in Fig. 4 is greater than that occupied by the two books shown in Fig. 2. Therefore, the plunger 37 must have a longer stroke, which is accomplished by disconnecting the bar 31 from the arm 33 and connectin it to an arm 87 which is secured to the sha t 34, whereby space is provided for two thin books to be moved between the incline 7 8 of the guide 49 and a thin book having the hole 54 bored part way through. The guide 49 is also ad ustable to provide for more space, the adjustment being accomplished by releasing clamp- 'ing bolts 88 passing through a slot 89 formed in the side guide 51 of which the guide 49 forms a part, the guide 49 being secured in place by means of the clamping bolts 88.

Having thus described my invention, and shown the preferred structural embodiment for practicing same, which means may' be materially varied without departing from the essential features of my disclosure, and without limiting my invention to the particular means illustrated and set forth except as required by the scope of the appended claims, I claim as new:

1. The method of drilling books consisting in presenting to the piercing tool a plurality of books, causing all preceding the last to be completely pierced and the last to be partially pierced by the same stroke of the tool, removing those completely pierced and advancing the partially pierced book to the position next the drill, placing others behind it, and repeating the operation, where by the last unit of the series constitutes an anvil, is then advanced to become the first unit of the next series, and then constitutes a shield for the first member of the succeeding series.

2. The method of uniformly drilling a series of groups of books, consisting in employing one of said group as an anvil while piercing a plurality of books preceding it, and then repeating the step, using the anvil book as the first member of the succeeding group.

3. The method of simultaneously drilling a plurality of books consisting in present ing a series of books to a piercing tool, completely piercing all but the last and partly piercing the last, at a single stroke; advancing the partially pierced book next to the tool, and using same as a shield and guide for a second series of books positioned behind it.

4. The method of protecting books while being drilled consisting in inter-posing said books between a pair of books, each of which pair is partially drilled by the same stroke.

5. The method of protecting books While being drilled consisting in clamping a plurality of said books between two others, one of which two is previously partially drilled and the other of which two is partially drilled by the same stroke as the others.

GEORGE B. DRACH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

